US10631464B2 - Agricultural utility vehicle having a power takeoff and method for operating the power takeoff - Google Patents

Agricultural utility vehicle having a power takeoff and method for operating the power takeoff Download PDF

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Publication number
US10631464B2
US10631464B2 US15/794,623 US201715794623A US10631464B2 US 10631464 B2 US10631464 B2 US 10631464B2 US 201715794623 A US201715794623 A US 201715794623A US 10631464 B2 US10631464 B2 US 10631464B2
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United States
Prior art keywords
power takeoff
energy storage
storage device
auxiliary power
implement
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US15/794,623
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US20180116125A1 (en
Inventor
Valentin Gresch
Martin Kremmer
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Deere and Co
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Deere and Co
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Assigned to DEERE & COMPANY reassignment DEERE & COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KREMMER, MARTIN, DR, GRESCH, VALENTIN, John Deere GmbH & Co. KG
Publication of US20180116125A1 publication Critical patent/US20180116125A1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F15/00—Baling presses for straw, hay or the like
    • A01F15/08—Details
    • A01F15/0841—Drives for balers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K25/00—Auxiliary drives
    • B60K25/06—Auxiliary drives from the transmission power take-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/20—Off-Road Vehicles
    • B60Y2200/22—Agricultural vehicles
    • B60Y2200/221—Tractors

Definitions

  • the present disclosure relates to an agricultural utility vehicle having a power takeoff for operating an implement.
  • the method further relates to a method for driving a power takeoff of an agricultural utility vehicle.
  • a work system consisting of a tractor and a square baler is known from U.S. Publication Ser. No. 2010/0115902A1.
  • the square baler is driven via a power takeoff of the tractor.
  • the rear power takeoff is in turn driven via a gear unit by the internal combustion engine of the tractor.
  • the output torque of the internal combustion engine is modified depending on the determined load data from the square baler.
  • the invention addresses the problem of driving a power takeoff of an agricultural vehicle in an energy-efficient manner for operating an implement with low expense.
  • an agricultural utility vehicle e.g. a traction vehicle or a tractor
  • an internal combustion engine which, in particular by means of a suitable clutch, gear stage or the like, drives a power takeoff of the utility vehicle.
  • This power takeoff (hereinafter “working power takeoff”) in turn operates, with its kinetic energy, an implement (e.g., a big baler).
  • the utility vehicle additionally includes a further power takeoff (hereinafter “auxiliary power takeoff”) that can be driven by the stored energy and energy storage device. It is provided that the auxiliary power takeoff is coupled to the working power takeoff in such a manner that the working power takeoff can be driven not only by the internal combustion engine, but also by the auxiliary power takeoff, at least transiently.
  • the term “at least transiently” includes defined or predetermined times or periods of time in which the auxiliary power takeoff is driven by the energy storage device and is drivingly coupled to the working power takeoff. At these times or in these periods of time, the auxiliary power takeoff is then in an assistance mode for assisting the rotational driving of the working power takeoff.
  • the auxiliary power takeoff can be driven under certain operating conditions by the internal combustion engine or the working power takeoff if the auxiliary power takeoff is not in the above-mentioned assistance mode thereof. It is also possible in principle for the working power takeoff and the auxiliary power takeoff to be driven independently of one another and, when necessary (e.g., during an assistance mode), coupled to one another in a defined manner.
  • an energy storage device is designed as a device that enables storage and regulated or controlled output of energy to the auxiliary power takeoff.
  • the energy storage device supplies the auxiliary power takeoff with kinetic energy if an elevated load torque or a load torque peak is acting on the working power takeoff.
  • an energy accumulator of the energy storage device can be implemented in different manners.
  • electrical energy storage mechanical energy storage (e.g., by means of a spring mechanism) or hydraulic energy storage (e.g., by means of a pressure accumulator) are conceivable.
  • the energy storage device has an energy accumulator that stores energy generated by the auxiliary power takeoff itself (other than in assistance mode). This avoids expensive additional energy sources on the utility vehicle and supports the energy-saving character in the desired assistance of the working power takeoff by the auxiliary power takeoff.
  • the energy storage device has a flywheel mass.
  • the flywheel mass can store energy and then output it.
  • the flywheel mass is designed as a flywheel. For an efficient usage of the flywheel mass, it can be simply connected to the auxiliary power takeoff.
  • the flywheel mass of the auxiliary power takeoff supplements the drive torque of the working power takeoff and thus the working energy of the implement (e.g., a flywheel mass of the implement).
  • the flywheel mass on the auxiliary power takeoff has the advantage that the total drive torque is less because the working power takeoff and the auxiliary power takeoff are coupled to one another only to compensate for load peaks on the working power takeoff.
  • the energy storage device has an electrical energy storage unit. It may it be designed, for example, as a super-capacitor.
  • the electrical energy storage unit is connected to an electrical machine that is coupled to the auxiliary power takeoff.
  • the electrical machine has at least one motor function and can output electrical energy from the energy storage unit as kinetic energy to the auxiliary power takeoff.
  • the electrical machine advantageously also has a generator function so that kinetic energy produced by the auxiliary power takeoff outside of assistance mode can be stored as electrical energy and output again as kinetic energy to the auxiliary power takeoff when necessary.
  • the electrical machine can be actuated to perform a motor or generator function depending on operating information from the implement. This may be derived, for example, from the temporally expected load torques at the working power takeoff.
  • the working power takeoff is designed as a rear-end power takeoff and the auxiliary power takeoff as a front-end power takeoff.
  • the energy storage device can be removable so that it can be mounted optionally at the front or rear power takeoff acting as the working power takeoff, in which case the respective other power takeoff constitutes the auxiliary power takeoff.
  • the energy storage device is advantageously arranged mechanically stably in a three-point hitch available as standard on the utility vehicle.
  • the distance between the auxiliary power takeoff and the energy storage device can be kept small and any losses in energy transmission between the two parts can be negligible.
  • the method for driving a working power takeoff of an agricultural utility vehicle presumes that an internal combustion engine of the utility vehicle drives the power takeoff of the utility vehicle, and in particular, via a suitable clutch, gear stage or the like.
  • an item of operating information e.g., pressing force, implement status, pressing piston position, etc.
  • a time or period of time is defined in which a further power takeoff, or an auxiliary power takeoff, of the utility vehicle is coupled to the working power takeoff such that the working power takeoff is additionally driven by the auxiliary power takeoff, the auxiliary power takeoff being supplied for this purpose with kinetic energy from an energy storage device.
  • the auxiliary power takeoff is thus in an assistance mode for assisting the rotary driving of the working power takeoff.
  • this assistance mode (such as compensating for peak loads appearing at the working power takeoff, reducing or avoiding decreasing the rotational speed of the internal combustion engine and the speed of the utility vehicle when torque or load peaks occur at the working power takeoff, etc.), the reader is referred to the above explanations.
  • the above-mentioned assistance mode of the auxiliary power takeoff is used with a big baler as the implement.
  • the big baler When the big baler is active, heavy cyclical peak loads are caused by the pressing piston and are transmitted via the gear unit of the baler to the working power takeoff of the utility vehicle.
  • the torque peaks of the working power takeoff resulting from this can be compensated in the assistance mode of the auxiliary power takeoff.
  • FIG. 1 shows an agricultural utility vehicle with a schematically illustrated implement at its rear
  • FIG. 2 shows a schematic-like representation of a working system consisting of the utility vehicle and the implement of FIG. 1 ;
  • FIG. 3 shows the front region of the utility vehicle of FIG. 1 .
  • an embodiment of an agricultural utility vehicle 10 is in the form of a tractor having a cab, a front axle 14 , and an internal combustion engine 16 for driving at least a rear axle 18 .
  • An implement 20 is operated with respect to its working function by means of a rear power takeoff (hereinafter working power takeoff 22 ) and is present at the rear area of the utility vehicle 10 .
  • working power takeoff 22 a rear power takeoff
  • a front three-point hitch 24 which supports a removable energy supply device 26 , is present at the front end of the utility vehicle 10 .
  • the energy storage device 26 has the purpose of driving a front power takeoff (hereinafter auxiliary power takeoff 28 ).
  • an operating element 30 for activating and deactivating the working power takeoff 22 and an operating element 32 for activating and deactivating the auxiliary power takeoff 28 , among other things.
  • an appropriate transmission ratio can be preselected and the power takeoff rotational speed can be limited by means of the operating elements 30 , 32 .
  • FIG. 2 schematically shows individual details of the interaction of the utility vehicle 10 with the implement 20 .
  • the two power takeoffs 22 , 28 can be driven by a suitable gearbox device 34 and the drivetrain of the utility vehicle independently of one another by the internal combustion engine 16 .
  • the auxiliary power takeoff 28 can additionally be coupled via the gearbox device 34 to the working power takeoff 22 in such a manner that the auxiliary power takeoff 28 simply runs at the speed of the working power takeoff 22 , which is achieved by the driving of the working power takeoff 22 by the internal combustion engine 16 .
  • the auxiliary power takeoff 28 can be coupled in an assistance mode to the working power takeoff 22 in such a manner that, at defined times or periods of time, the working power takeoff 22 is not driven only by the internal combustion engine 16 , but also by the auxiliary power takeoff 28 , in order to compensate for elevated load torques or load torque peaks at the working power takeoff 22 .
  • an implement 20 in the form of a large baler 36 is operated by means of the working power takeoff 22 .
  • the big baler 36 includes a flywheel 38 which, optionally via intervening additional components for transmitting force, is drivingly coupled to the working power takeoff 22 .
  • a pressing gear unit 40 which operates a pressing piston 42 , is connected to the flywheel 38 .
  • additional components for force transmission can be provided between the flywheel 38 , the pressing gear unit 40 and the pressing piston 42 .
  • the energy storage device 26 contains an alternating current machine 44 that can be used as a motor and a generator, an AC/DC converter 46 , an energy storage unit 48 designed as a super-capacitor, and a control unit 50 .
  • the control unit 50 is connected via a data bus 52 of the utility vehicle 10 to a control unit 54 of the implement 20 or the large baler 36 . In this way, the control unit 50 of the energy storage device 26 can receive data and information regarding expected load cycles of the implement 20 or the large baler 36 .
  • the energy storage device can be controlled in such a manner that the alternating current machine 44 is active as a generator during a low-load period of time (e.g., with torques M of approximately M N ), so that mechanical energy available at the auxiliary power takeoff is stored as electrical energy in the energy storage unit 48 .
  • the alternating current machine 44 operates as a motor and outputs the stored energy back to the auxiliary power takeoff 28 , which thereby additionally drives the drive shaft 22 in an assistance mode.
  • the control unit 50 regulates the torque of the alternating current machine 44 operating as a motor, based on received or determined predictive load information from the implement 20 or the large baler 36 .
  • high cyclical peak loads i.e., torques M that are greater than a low-load torque M N and can reach a peak torque M S (see schematic diagram in FIG. 1 ) are generated and can be transmitted via the pressing gear unit 40 to the working power takeoff 22 of the utility vehicle 10 .
  • This can lead to a decrease of the rotational speed of the internal combustion engine 16 and a decrease of the forward speed of the utility vehicle 10 in working operation.
  • the working power takeoff 22 is additionally driven by the auxiliary power takeoff 28 at defined times or periods of time (e.g., t S , or t 1 to t 2 ).
  • an information item of the active big baler 36 is determined in the embodiment according to FIG. 2 .
  • This operating information item can be a position P K and a pressing force F P of the pressing piston 42 , for example.
  • predictive load information is determined, particularly a load torque M to be expected or a load peak M>M N and the associated time t 1 , t S , t 2 or time period t 1 to t 2 . It is thereby possible to define times or periods of time in which the auxiliary power takeoff 28 is coupled to the working power takeoff 22 and supplied with kinetic energy in such a manner that the working power takeoff 22 is additionally driven by the auxiliary power takeoff 28 .
  • the energy storage device 26 according to FIG. 2 can be considered an electrically active flywheel mass or electrically active flywheel
  • the energy storage device 26 in the embodiment of FIG. 3 has a mechanical flywheel mass 56 that is connected to the auxiliary power takeoff 28 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
US15/794,623 2016-10-28 2017-10-26 Agricultural utility vehicle having a power takeoff and method for operating the power takeoff Active 2038-03-20 US10631464B2 (en)

Applications Claiming Priority (3)

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DE102016221311 2016-10-28
DE102016221311.3 2016-10-28
DE102016221311.3A DE102016221311A1 (de) 2016-10-28 2016-10-28 Landwirtschaftliches Nutzfahrzeug mit Zapfwelle und Verfahren zum Antrieb der Zapfwelle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11492780B1 (en) 2021-10-26 2022-11-08 Deere & Company Work vehicle having electric machine and energy storage device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230129826A1 (en) * 2021-10-26 2023-04-27 Deere & Company Work vehicle and energy storage device having an electric machine and a rotor mass

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6048288A (en) * 1997-11-18 2000-04-11 Toyota Jidosha Kabushiki Kaisha Power train system for a vehicle and method for operating same
EP1273218A1 (de) * 2001-07-03 2003-01-08 Lely Enterprises AG Landwirtschaftliche Maschine
US20040204276A1 (en) * 2003-04-08 2004-10-14 Deere & Company, A Delaware Corporation Drive arrangement for the drive of attached implements for a vehicle
US20090018716A1 (en) * 2007-07-12 2009-01-15 Joseph Mario Ambrosio Parallel hybrid drive system utilizing power take off connection as transfer for a secondary energy source
US20100115902A1 (en) 2008-11-10 2010-05-13 Walter Mark Schlesser Tractor And Baler Interaction System
DE102009046973A1 (de) 2009-11-23 2011-05-26 Zf Friedrichshafen Ag Hydraulische Vorrichtung für einen wenigstens eine Antriebsmaschine umfassenden Fahrzeugantriebsstrang
WO2011138308A1 (en) 2010-05-06 2011-11-10 Agco Sa Tractor with hybrid power system
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GB2493961A (en) * 2011-08-26 2013-02-27 Agco Sa Power takeoff drive system for an agricultural tractor
DE102012006731A1 (de) 2012-04-02 2013-10-17 Eduard Hilberer Nutzfahrzeug mit einem Hybrid - Elektrozapfwellensystem und Fronthydraulik
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EP2929776A1 (de) * 2014-04-08 2015-10-14 Usines Claas France S.A.S Landwirtschaftliche Ballenpresse
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EP2998167A1 (de) 2014-09-22 2016-03-23 CLAAS Tractor S.A.S. Energiespeichermodul für ein landwirtschaftliches fahrzeug
EP3105076A2 (de) 2014-02-11 2016-12-21 Deere & Company Verfahren zum leistungsbedarfsabhängigen betrieb einer generatoreinheit
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EP1273218A1 (de) * 2001-07-03 2003-01-08 Lely Enterprises AG Landwirtschaftliche Maschine
US20040204276A1 (en) * 2003-04-08 2004-10-14 Deere & Company, A Delaware Corporation Drive arrangement for the drive of attached implements for a vehicle
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US20100115902A1 (en) 2008-11-10 2010-05-13 Walter Mark Schlesser Tractor And Baler Interaction System
US8115334B2 (en) * 2009-02-18 2012-02-14 General Electric Company Electrically driven power take-off system and method of manufacturing same
DE102009046973A1 (de) 2009-11-23 2011-05-26 Zf Friedrichshafen Ag Hydraulische Vorrichtung für einen wenigstens eine Antriebsmaschine umfassenden Fahrzeugantriebsstrang
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GB2493961A (en) * 2011-08-26 2013-02-27 Agco Sa Power takeoff drive system for an agricultural tractor
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WO2016005334A1 (en) * 2014-07-09 2016-01-14 Cnh Industrial Belgium Nv Auxiliary power system for an agricultural baler with mechanical flywheel braking.
EP2998167A1 (de) 2014-09-22 2016-03-23 CLAAS Tractor S.A.S. Energiespeichermodul für ein landwirtschaftliches fahrzeug
DE102014113613A1 (de) 2014-09-22 2016-03-24 Claas Tractor Sas Energiespeichermodul für ein landwirtschaftliches Fahrzeug
DE102015115649A1 (de) 2015-09-16 2017-03-16 Claas Tractor Sas Landwirtschaftliches Arbeitsfahrzeug

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German Search Report issued in counterpart application No. DE 10 2016 221 311.3 dated Mar. 8, 2017 (12 pages).

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11492780B1 (en) 2021-10-26 2022-11-08 Deere & Company Work vehicle having electric machine and energy storage device

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DE102016221311A1 (de) 2018-05-03
US20180116125A1 (en) 2018-05-03

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